1. a light-colored volcanic tuff resembling pozzolana in composition and occurring especially on the lower Rhine where it is ground for use in a hydraulic cement
trass 片语
片语
trass mortar[建]
trass mortor浮石火山灰砂浆
trass cent火山灰洋灰
trass concrete火山灰混凝土
Igor Trass伊戈尔线路定位
trass cement火山灰水泥;粗面凝灰巖水泥
trass detail粗面凝灰巖
volcanogenic soil火山土
volcanic soil火山土,火山土壤
mortar from trass火山灰灰浆
trass WESTBANK火山灰
trass 例句
英汉例句
Based on screening and sampling, properties of trass and trass concrete in Ximeng area of Inner Mongolia was studied.